Closure



Sept. 5, 1933. 5, RE"; 1,925,280

CLOSURE Filed May 27, 1929 INVENTOR ATTORNEYS Patented Sept. 5, 1933 CLOSURE James S. Reid, Cleveland, Ohio, assignor to Eaton Manufacturing Company,

Cleveland,

Ohio, a corporation of Ohio Application May 27, 1929. Serial No. 366,166

2 Claims.

and in which the locking member forms the bottom wall for the closure.

The invention may be further briefly summarized as consisting in certain novel combina tions and arrangements of parts hereinafter described and set out in the appended claims.

In the sheet of drawing forming a part of this application Fig. 1 is a top plan view of my improved form of closure. 7

Fig. 2 is a sectional elevation taken on line 2-2 of Fig. 1.

Fig. 3 is a side elevational view of my closure.

Fig. 4 is a bottom plan view of the device.

My improved form of closure shown in the drawing is of the bayonet type, and adapted to be detachably connected to a member for the purpose of closing an opening through said member. The member to which my closure is to be applied may be tubular in form, or substantially fiat, the member being provided with lugs or cam portions adapted to be engaged by locking fingers upon relative rotation between the closure and the member, as is v ell known in the art.

As shown in the drawing, my closure comprises a hollow body member 10, which may be formed or stamped from relatively thick sheet metal or other suitable material, and which in this instance is shown as being cup-shaped or bell-shaped in form, and having an opening 11 formed through the top wall thereof. More specifically the hollow body member may be described as conforming in shape with a surface of revolution which is of rounded form corresponding approximately to a zone of a sphere. The body member is provided with an inturned flange 12 which surrounds the opening formed through the top wall. For the purpose of closing this opening, and to provide a member of suitable shape to form a convenient means for gripping the closure, I employ a cupshaped cap member 13 having a portion of its side wall 1 L extending into the opening 11 for engagement with the flange 12. This cap member is preferably made of such a depth that when this member is in position to close the opening through the top wall of the body member, a portion of the cap member will extend above the body portion to form a means for conveniently gripping or handling the closure. To facilitate handling and rotating the closure, the cap member 13 may be provided with knurling 15 around the outer edge of the portion extending above the body member. This cap member may be secured to the body portion by pressing the cap member into the opening 11, or by welding or otherwise securing the wall 14 of the cap member to the flange 12 of the body member.

A locking member 16 is permanently and nonrotatably secured in the body member 10 so as to form a bottom wall for the closure. This looking member may be secured in the body member in any convenient manner, but in this instance this member is provided with an annular flange 17 which is spot-welded to the body member 10. The locking member is provided with looking fingers 18 which are formed from lugs sheared from the locking member and bent to extend out of the plane of this member. These locking fingers are provided in any suitable number, and serve as a resilient means for engaging the lugs or cam portions of the member to which the closure is applied. The base portion of these lock ing' fingers are preferably provided with reinforcing lugs 19 which are formed by depressing portions of the locking member.

To permit access to the inside of the body member and to the inside of the cap member 13, I provide openings 20 through the locking member 16. Pairs of these openings are arranged between the locking fingers, and the openings of each pair are placed side by side so as to permit welding tools, or the like, to be introduced into the body member and into the cap member for engagement with the wall 14 and the flange 12 It will now be readily seen that I have provided an attractive and durable form of closure construction adapted to be used for caps which are relatively large in size and of comparatively heavy construction, so as to provide means for gripping the heavy closure in order that the same may be easily and quickly connected or disconnected.

While I have shown and described my invention in a detailed manner, it should be understood, however, that I do not limit myself to the precise details shown and described, but regard my invention as including such changes and modifications as do not involve a departure from the spirit of the invention and scope of the appended claims.

bell shaped body member having an opening through the top wall thereof and provided with an inturned flange surrounding said opening, a cap member adapted to close said opening, said cap member having a portion of its side wall in engagement with said flange, and a locking member secured in said body member and forming a bottom wall for the same, said locking member having radially aligned openings therethrough aifording access for welding electrodes to the inside of said body member and to the inside of said cap member.

JAMES S. REID. 

